Improvement in cultivators



A. F, STlLLWELL.

Cultivator.

I Patented Sept. 4,1866 v UNITED STATES PATENT AQFFICE.

ADDISON F. STILLWELL, OF FAYETTE, IOWA.

IMPROVEMENT IN CULTIVATORS.

Specification forming part of Letters Patent No. 57,792, dated September4, 1866.

To all whom it may concern: 7

Be it known that I, ADDISON F. STILLWELL, of Fayette, in the county ofFayette and State of Iowa, have invented a new and Improved Cultivator;and I do hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being bad to the accompanying drawings,forming part of this specification, in which- Figure 1 is a perspectiveview of my invention; Fig. 2, a detached vertical section of one of thestandards and plows pertaining to the same.

Similar letters of reference indicate like parts.

This invention consists in a novel manner of arranging the front plowsof the device, whereby the plows may be adjusted to perform differentkinds of work, as required.

Arepresents the beam of the cultivator, provided with handles B B, and Ois a standard secured to the rear end of the beam A, and

having a plow, D, at its lower end.

E represents a metal bar, which is secured to the plow-beam A inaposition transversely therewith by means of a clip, F. The ends of thebar E are curved or bent downward,

' and have Ts or cross-bars G at their lower ends, the bottoms of whichare of curved or segment form.

H H represent wooden standards, which are secured to the bent ends ofthe bar E by bolts a, and I I are bars secured to the front sides of thebent ends of the bar E by the bolts to, the latter passing through theupper ends of I.

The bars I have pins or projections 12 at their inner sides, which fitin any of a series of indentations, 0, made inthe front sides of Ts orcross-bars G, the indentations being made in the arc of a circle ofwhich the bolts to are at the center. (See Fig. 1.)

J represents the shares, which are secured to the standards H H bypivot-bolts d. The

,more or less pointed, or into horizontal-edged shares to act more likescrapers; and the .shares may also be reversed-that is to say,

changed in position on the standards, the righthand one placed on theleft-hand one, and vice versa.

The bars I at their lower ends are secured in position by brace-rods K,the front ends of which are attached to the beam A, and the rear endshaving screw-threads cut on them, on which jam-nuts g are placed, one atthe front sides of the bars I and the other at the rear sides of thestandards, the bars I being prevented from casually slipping inconsequence of the pins or projections b fitting in the indentations cin the Ts or cross-bars G.

The arrangement is extremely simple and efficient; and renders thedevice applicable for pulvrizing the ground or for eradicating weeds,(surface culture,) as may be required.

Having thus described my invention, I claimas new and desire to secureby Letters Patent-- The bar E, beam A, and cross-bars G, in combinationwith the bars I, projections b, spurs f, shares J, and brace-rods K, allarranged to operate as and for the purposes set forth. I

The above specification of my invention signed by me this 20th day ofJuly, 1865.

, ADDISON F. STILLWELL.

THOS. N. SKINNER, A. H. Fox.

